Anyone use the Peapod travel bed?

[jgsrun]

We're travelling a lot this summer and would love to be able to use this for my 5 month old to sleep in at night. Anyone have any experience with it? It seems big enough for him to actually sleep in. We have blow up mattresses for my 2 and 4 year olds. I'd rather not have to schlep a pack n play on the airplane (well, through baggage anyway).

http://www.onestepahead.com/product/86219/427763/117.html

Thanks!
Julie